Pioneer DEH-P490IB Service Manual page 66

1
GP1UX51RK
- Block Diagram
A
Amp Limiter
B
- Pin Functions (PEG268A)
Pin No. Pin Name
1 D_CLK
2 D_OUT
reset
3
4 XOUT
5 VSS
6 XIN
7 VCC
8 MODE
9 D_IN
rem
10
C
11 XRESET
12 DPDT
13 KYDT
14 MCLK
15 ADKEY2
16 VREF
17,18 ADKEY1,0
19 DIM
20 XCMD
PEG268A
10
D
11
PE5547A
E
109
144
F
66
1
2
B.P.F Demodulato Integrator Comparator
I/O Format
O C
O C
I
O
I
I
I
I
I
I
O C
I
O C
O C
I
I
I
O C
O C
1
20
72
37
DEH-P490IB/XN/UC
2
3
RL
2 3 1
GND VCC vout
Function and Operation
OELD controller clock
OELD controller data output
MCU RESET
10 MHz crystal oscillator
GND
10 MHz crystal oscillator
Power supply input
Terminal for debug
OELD controller data input
Remote control input
Reset for OELD controller
DISP data input from sytem
KEY data output to system
OELD master clock output
AD KEY input 2
AD reference voltage input(VCC)
AD KEY input 1,0
General purpose port(DIMMER output)
Command select for OELD controller
3
4
- Pin Layout
1 2 3
vout GND VCC
Format Meaning
C CMOS
Format Meaning
C CMOS
N Nch open drain
4